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Dongmei He^1,2, Weixiang Liu³, Lei Wang^1,2

¹Jiangsu Academy of Forestry, Nanjing 211153, China.

|February 27, 2026

概括

沿海湿地土壤微生物根据植物类型和位置不同. 盐度,总有机碳 (TOC) 和土壤湿度 (SH) 显著影响微生物的结构和多样性.

科学领域:

环境微生物学环境微生物学
沿海生态沿海生态
生物地质化学循环过程

背景情况:

土壤微生物群落对于沿海湿地生物地化学过程至关重要.
了解微生物社区结构和环境驱动因素对于湿地健康至关重要.

研究的目的:

研究沿海湿地的土壤微生物群落结构和关键环境因素.
为了比较 *Spartina alterniflora* (靠近海洋和陆地) 和 *Phragmites australis* 主导的土壤中的微生物群落.

主要方法:

从三个不同的沿海湿地收集了土壤样本:海边的Spartina alterniflora (HB),陆地附近的Spartina alterniflora (ZY) 和南方的Phragmites australis (KA).
测量了环境因素,包括盐度,总有机碳 (TOC),土壤湿度 (SH),土壤温度和电导率 (EC).
使用分子技术分析了微生物社区结构和α多样性.

主要成果:

在这三个地点观察到环境因素的显著差异.
乙型肝炎部位表现出高盐度和低TOC,而*Pseudomonas*和*Bacteroidota*占据了微生物群落的主导地位.
该KA地点的盐度较低,土壤温度较高,SH,TOC和NH₄⁺,其中*Chloroflexota*和*Gemmatimonades*更丰富.
在 *Phragmites australis* 土壤 (KA) 中,微生物α多样性最均,而在海附近的 *Spartina alterniflora* 土壤 (HB) 中,物种丰富度最高.

结论:

盐度,TOC和SH被确定为影响沿海湿地的土壤微生物社区结构和多样性的关键环境因素.
高度的环境可能有利于丰富耐盐微生物.
高的TOC和足够的土壤湿度似乎促进了微生物社区的统一性.

关键词:

阿尔法多样性的多样性沿海湿地沿海湿地环境因素环境因素土壤微生物社区

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